News Article | August 1, 2017
LSP Technologies (LSPT) is offering laser peening research and application development at the ZAL Center of Applied Aeronautical Research in Hamburg, Germany. Machine time on LSPT’s state-of-the-art laser peening equipment at ZAL will be available to manufacturers seeking industry-leading metal fatigue enhancement. Dublin, Ohio, USA, 01-Aug-2017 — /EuropaWire/ — LSP Technologies (LSPT) is now filling its schedule for laser peening application development in Europe. This landmark opportunity coincides with the impending delivery of LSPT’s Procudo® 200 Laser Peening System to the ZAL Center of Applied Aeronautical Research (ZAL Zentrum für Angewandte Luftfahrtforschung) in Hamburg, Germany. Beginning in 2018, LSPT is making the Procudo® System available to European manufacturers for laser peening research and application development. • Production-quality system engineered for high-volume laser peening • Diode-pumped, pulsed YLF laser delivers high beam quality for consistent processing • Fastest (20 Hz) and most powerful (200 W) pulsed laser peening equipment available in the world • Real-time diagnostics and selectable beam parameters for comprehensive process control “This is the first opportunity for many European manufacturers to access an industrial laser peening system for application and product development research,” said David Lahrman, VP of Business Development for LSPT. “We’re introducing a superior fatigue enhancement solution to the European market, and we’re excited to form new partnerships in pursuit of stronger, more reliable components.” Laser shock peening (LSP) is a powerful metal improvement process that produces a 10X fatigue life enhancement over shot peening. LSP utilizes a high-energy pulsed laser to generate controlled stress waves that impart compressive residual stresses up to 12 mm beneath the material surface. Laser peening has been proven to significantly extend the service life of metal parts by providing enhanced resistance to common failure mechanisms: Laser peening improves the performance and reliability of metal components, adding value to critical parts across a broad range of industries: LSP Technologies’ newest laser peening facility will reside in the heart of the Hamburg Aviation Cluster at the ZAL Center of Applied Aeronautical Research. The ZAL TechCenter is one of the largest and most advanced aeronautical research facilities in the world, offering an innovative research space for collaborative development of emerging technologies. Companies looking to improve the fatigue strength and performance capabilities of their parts should contact LSP Technologies regarding access to the Hamburg laser peening facility. Highly trained technicians will work alongside OEM researchers to develop custom applications addressing specific material performance issues. LSP Technologies is the world’s premier laser peening services, technology and equipment provider, delivering proven metal enhancement solutions for more than twenty years. LSPT is the only company in the world selling, installing, and integrating laser peening systems into manufacturing and research facilities, and the company has been awarded more than fifty patents for innovations in laser peening equipment and technology.
News Article | June 14, 2017
Laser peening extends component service life through increased fatigue strength, improved damage tolerance, and enhanced corrosion cracking resistance. It has been widely adopted by combustion turbine manufacturers to prevent critical component failures. Dublin, Ohio, USA, 14-Jun-2017 — /EuropaWire/ — LSP Technologies announces the sale of its state-of-the-art Procudo® 200 Laser Peening System to the ZAL Zentrum für Angewandte Luftfahrtforschung in Hamburg, Germany. The equipment is being delivered to the ZAL TechCenter in Hamburg during the 3rd quarter of 2017, and being used to study metal fatigue enhancement applications for the civil aviation industry. “We are very excited to introduce the first production-quality commercial laser peening system into Europe,” said Dr. Jeff Dulaney, President and CEO of LSP Technologies, Inc. “Laser peening is becoming the aviation industry standard for increasing fatigue strength in titanium and steels, and LSPT’s Procudo® Laser Peening System is the most powerful and versatile machine available for component service life extension.” Laser peening is a proven method for significantly increasing the fatigue life and fatigue strength of metals. The mechanical surface enhancement process utilizes a high-energy pulsed laser beam to impart compressive residual stresses up to twenty times deeper than shot peening. The compressive stresses introduced by laser peening add strength and robustness to metal parts by improving their resistance to damage, fatigue, crack initiation and crack propagation. Benefits of the process include: extended component service life, reduced maintenance and repair costs, improved part performance, and enhanced resistance to failure. The process has been employed for years by major aerospace OEMs including GE Aviation and Rolls Royce. LSP Technologies’ Procudo® 200 Laser Peening System is the only commercially available laser designed exclusively for laser peening. It employs a diode-pumped, pulsed YLF laser that produces a flat-top beam for smooth energy distribution and consistent processing. The flexible system offers selectable laser parameters, along with custom controls and diagnostics developed from LSPT’s 20 years of laser peening experience. Engineered for high-volume production processing, the Procudo® Laser Peening System can deliver 20 pulses per second, making it the fastest laser peening system ever built. The Hamburg Center of Applied Aeronautical Research was established in 2009 as a technological research and development hub for the Hamburg Aviation Network. It is a public-private partnership that not only includes collaboration from some of the aviation industry’s largest organizations, such as Lufthansa and Airbus, but also from suppliers, SME, universities, research institutions, start-ups and many more. The ZAL TechCenter opened in Hamburg in 2016, and the 95-million-euro facility immediately became one of the largest and most advanced aeronautical research facilities in the world. LSP Technologies is the world’s premier laser peening services, technology and equipment provider. It is the only company in the world selling, installing, and integrating state-of-the-art laser peening systems into manufacturing and research facilities. The company has been providing laser peening production services for clients in the aviation and power generation industries for over twenty years, and has been awarded more than fifty patents for innovations in laser peening equipment and technology.
News Article | February 21, 2017
LSP Technologies, Inc. (LSPT) announced the sale of its state-of-the-art Procudo® Laser Peening System to the Guangdong University of Technology (GDUT) in Guangzhou, China. The sale includes a 200-watt Procudo® 200 Laser Peening System along with paired work cell and robotic part manipulation equipment for a fully-integrated production-quality laser peening facility. The equipment will be delivered in early 2017, and installed on GDUT’s campus. GDUT will use the system to conduct research and application development on laser peening (LSP), laser peen forming, and laser-material interactions. This sale represents LSP Technologies' introduction into the Asian material improvement market, and the equipment will provide GDUT with the fastest high-energy laser peening system currently available anywhere in the world. The Procudo® 200 Laser Peening System is the highest-power laser peening system in the industry, and the world’s first turn-key laser peening system available for commercial integration. The system offers 20 Hz repetition rates for efficient industrial processing, and an advanced control system for real-time data collection and storage. The embedded diode-pumped laser offers an injection-seeded oscillator with multiple amplifier modules and YLF rod sizes from 3 mm to 25 mm to produce gigawatts of power. The system produces a flat top beam with up to 10 Joules per pulse at a wavelength of 1053 nm. The flexible system offers selectable pulse widths and repetition rates, while delivering consistent outputs with narrow variability. The system is designed for integration with modular work cells for laser-delivery, diagnostics, and part-handling, and can be supplied with a wide range of automated robots and accessories to facilitate laser peening parts of nearly any shape and size. “As the first commercially available laser peening system, it was critically important that we designed and built the Procudo® 200 LSP System to meet the rigorous industrial standards demanded by the aerospace industry,” said Dr. Jeff Dulaney, CEO of LSP Technologies, Inc. “Our engineers have been refining laser peening technology for over twenty years, and this state-of-the-art system represents a culmination of decades of cutting-edge work and innovation in the field. We are very excited to be partnering with such a prestigious institution as GDUT, and we look forward to expanding the availability of laser peening technology in the Asian market through our combined efforts. We expect the data generated from this international effort to fuel the proliferation of laser peening technology throughout China and around the world.” GDUT and LSPT will work together to introduce laser peening technology to China and Asia by bringing leading academics and researchers from the international laser peening community to GDUT for cutting-edge research. Laser peening is a proven method for significantly increasing the fatigue life and fatigue strength of metals. The mechanical surface enhancement process utilizes a high-energy, pulsed laser beam to impart compressive residual stress fields into metal alloys such as titanium or steel. Compressive residual stresses add strength and robustness to metal parts by improving their resistance to damage, fatigue, crack initiation, and crack propagation. Laser peening can even be used to arrest the propagation of existing cracks in fielded components, leading to reduced maintenance and repair costs, longer inspection intervals, and significantly increased service lifetimes. Laser peening has been shown to impart beneficial stresses many times deeper than shot peening, leading to increased damage tolerance, reduced fatigue effects, and superior resistance to stress corrosion cracking. Laser peening is routinely applied to turbine engine blades for commercial and military engine components, as well for turbines used in electrical power generation. The process has been employed for years by major aerospace OEMs such as Rolls Royce on its Trent series engines and GE Aviation to improve turbine engine blade resistance to foreign object damage (FOD), fretting fatigue, and cracking. LSP Technologies is the world’s premier laser peening services, technology, and equipment provider. It is the only company in the world selling, installing, and integrating state-of-the-art laser peening systems into manufacturing and research facilities. The Company has been providing laser peening production services for clients in the aviation and power generation industries for over twenty years, and has been awarded more than fifty patents for innovations in laser peening equipment and technology.
Brockman R.A.,University of Dayton |
Braisted W.R.,University of Dayton |
Olson S.E.,University of Dayton |
Tenaglia R.D.,LSP Technologies, Inc. |
And 3 more authors.
International Journal of Fatigue | Year: 2012
The use of laser shock peening (LSP) to enhance the fatigue resistance of metals offers several potential advantages over more conventional surface enhancement techniques such as shot peening, including deeper penetration of the residual stresses, more reliable surface coverage, and the potential for reduced microstructural damage. In the last decade, computational hardware and software resources have advanced to a state that permits numerical simulation of practical LSP processing at a reasonable level of detail, including complex geometric features, multiple and overlapping laser pulses, and intensity variations within the individual laser spots. This article offers some further developments in simulating LSP processes on a realistic scale, as well as some simple methods for distilling and interpreting results from such simulations. A key point of interest is the local variations in residual stress that occur within the processed region, which are quite sensitive to processing variables, and not easily measured experimentally. The simulations suggest that X-ray diffraction measurements of the residual stress field offer only a coarse description of the final residual stress field, and should be interpreted with some caution. We propose some methods for interpreting the simulation results statistically, to provide a clear but accurate characterization of the surface treatment and its effect on fatigue behavior. © 2011 Published by Elsevier Ltd.
LSP Technologies, Inc. | Date: 2014-08-26
LSP Technologies, Inc. | Date: 2010-12-07
The invention relates to a method and apparatus for improving properties of a solid material by providing shockwaves there through. Laser shock processing is used to provide the shockwaves. The method includes applying a liquid energy-absorbing overlay, which is resistant to erosion and dissolution by the transparent water overlay and which is resistant to drying to a portion of the surface of the solid material and then applying a transparent overlay to the coated portion of the solid material. A pulse of coherent laser energy is directed to the coated portion of the solid material to create a shockwave. Advantageously, at least a portion of the unspent energy-absorbing overlay can be reused in situ at a further laser treatment location and/or recovered for later use.
LSP Technologies, Inc. | Date: 2011-02-08
A bend bar is available for use in a quality control test for testing for a consistency of residual stress effects in a particular material using a given a laser peening process. The bar is composed of the particular material to be tested and has a bar length and a bar thickness. The particular material has a characteristic maximum stress penetration depth for compressive residual stresses that can be formed in using the given laser peening process. The bar thickness is chosen so as to be at least twice the characteristic maximum stress penetration depth. The bar has a test surface that extends parallel to the bar length and perpendicular to the bar thickness. After forming a spot pattern on the test surface using the given laser peening process, the deflection generated in the bar due to the compressive residual stresses induced by laser peening can then be measured and used as a quality control measurement.
Agency: Department of Defense | Branch: Defense Advanced Research Projects Agency | Program: SBIR | Phase: Phase I | Award Amount: 150.00K | Year: 2013
Composite structures are the future of aviation. They reduce weight and improve fuel efficiency. Composite structures are now incorporated into aircraft by all major aerospace manufacturers. Many composite structures are assembled with fasteners, but, to meet future design requirements, manufacturers need adhesive bonding for their composite structures. In order for the industry to determine the safety and integrity and certify these aircraft, the adhesive bonds in these structures must be tested to verify the manufacturing process and, in subsequent depot level maintenance to confirm they are still adequate. There is no conventional non-destructive testing method available to assure that the bond strength is adequate for service. An inspection technology developed at LSP Technologies, Inc. offers a solution to evaluate the strength of adhesive bonds in bonded structures. This inspection technique is a local proof-testing method that applies a well-controlled dynamic tensile stress to the composite structure and senses inadequacies of these hard-to-detect weak adhesive bonds in response to the tensile stress. The tensile stress is generated by a pulsed laser beam interaction at the surface of the composite material. The controlled local stressing of the composite material has no effect on the material or properly bonded structures.
Agency: Department of Defense | Branch: Defense Advanced Research Projects Agency | Program: SBIR | Phase: Phase II | Award Amount: 1.00M | Year: 2014
Aerospace manufacturers are using composite structures in aircraft and they are the future of aviation. Composites reduce weight and maintenance costs. Today, many composite structures are joined together with fasteners. However to meet future design r
Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 80.00K | Year: 2015
Existing repair methodologies for cracked structures aboard US Navy ships are currently limited in efficiency and effectiveness. New repair methodologies that directly address the local stress states leading to fatigue cracking and stress corrosion cracking are possible with laser peening technology. The proposed laser peening solution allows repairs independent of the cracked structure geometry, requires no hazardous chemicals, requires no additional NDI, and does not jeopardize the existing structure or corrosion resistance of the material. To demonstrate this materiel solution, proof of concept is demonstrated through a rigorous coupon testing program that replicates in-service cracking conditions and the treatment of these crack conditions via laser peening. Further technology developmental efforts are focused on identifying requirements, options, and an optimal solution for a portable laser peening system design. The laser peening system concept will be designed to meet the key performance metrics for the laser peening process, the size and mobility requirements for shipboard usage, and the hazard mitigation requirements for laser peening in an open environment. The portable laser peening system is anticipated to achieve significant cost savings in comparison to conventional laser peening systems through the use of commercial off-the-shelf (COTS) components.